[3]
Conceptualising value co-creation: A journey to the 1970s and back to the future[J] . Christian Gr?nroos.  Journal of Marketing Management . 2012 (13-1)
[3]
Conceptualising value co-creation: A journey to the 1970s and back to the future[J] . Christian Gr?nroos.  Journal of Marketing Management . 2012 (13-1)